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Russian State-Sponsored Hackers Use Claude to Rebuild Malware After Detection

Anthropic on Thursday revealed it disrupted a campaign mounted by a Russian state-sponsored threat actor that abused Claude for developing an AI-assisted workflow to get ahead of the detection curve. The operation has been attributed to a cyber espionage group it calls GTG-20006 (where "GTG" stands for Generative Threat Group), which aligns with broader reporting linking the cluster to Midnight

Anthropic caught Russia-linked spies using Claude in hacking operations

Anthropic detected and disrupted a Russia-linked cyber-espionage group that used its AI tool Claude in a hacking campaign targeting more than 20 government, intelligence, diplomatic and defense organizations.

Cisco FMC Flaws Exploited to Steal Credentials and Deploy Qilin Ransomware

Cisco has revealed that three distinct threat clusters linked to ransomware and state-sponsored attacks have been exploiting two recently patched Secure Firewall Management Center (FMC) vulnerabilities. The attacks leverage CVE-2026-20079 (CVSS score: 10.0), an authentication bypass vulnerability in the web interface of FMC software that could allow an unauthenticated, remote attacker to bypass

Cisco FMC flaws exploited by ransomware gang, state-sponsored hackers

Cisco Talos says two recently patched Secure Firewall Management Center (FMC) vulnerabilities have been exploited by three separate threat clusters linked to ransomware and state-sponsored attacks. [...]

New 'BlueMoon' kit exploited Windows and Chrome zero-day flaws

Multiple cyber-espionage groups deployed an exploit kit dubbed "BlueMoon" that leveraged zero-day vulnerabilities in Microsoft Windows and Google Chrome. [...]

Four Nation-State Actors Used the Same Chrome Zero-Day Exploit Kit Within 12 Days

Four espionage groups used the BlueMoon Chrome+Windows exploit kit within 12 days. Researchers suspect AI development. Proofpoint published a detailed analysis of a Chrome-and-Windows exploit kit it tracks as BlueMoon that four nation-state actors adopted within roughly two weeks of the first observed use. Google’s Threat Intelligence Group, Microsoft’s MSTIC, and Volexity all contributed to […]

Chinese espionage groups swarm to exploit triple-link chain of zero-days

AI Is Giving Lesser-Resourced Attackers Nation-State-Level Reach, Google Warns

Criminal and state-sponsored adversaries are increasingly using AI to automate and scale their attacks, according to GTIG. The post AI Is Giving Lesser-Resourced Attackers Nation-State-Level Reach, Google Warns appeared first on SecurityWeek.

Four Spy Groups Used the Same Chrome and Windows Exploit Kit Within a Week

Multiple espionage-motivated threat activity clusters have been found deploying a previously undocumented exploit kit called BlueMoon that chains together multiple vulnerabilities in Microsoft Windows and Google Chrome. The first in-the-wild use of BlueMoon has been attributed to the China-aligned state-sponsored group tracked as APT31 (aka Bronze Vinewood, Judgement Panda, JungleBamboo,

Multiple Chinese hacking groups seen using identical Chrome zero-day exploit

A Google Chrome bug identified in August was exploited by at least four China-linked cyber-espionage groups, according to researchers.

GTIG AI Threat Tracker: From Prompting to Autonomy – The Evolution of Adversarial AI

Executive Summary Since the release of our May 2026 report detailing adversarial misuse of artificial intelligence (AI), Google Threat Intelligence Group (GTIG) has observed forward leaning adversaries transition from basic prompting to agentic AI workflows and AI-enabled automation. In these operations, human-in-the-loop latency is dramatically reduced, compressing the traditional window for defenders to respond. In Q2 2026, GTIG observed threat actors compromise a cloud resource, then plan, b…

North Korean Hackers Deploy New Linux Espionage Toolkit

The stealthy toolkit embeds a backdoor in HAProxy and targets automotive and media organizations in South Korea for long-term surveillance. The post North Korean Hackers Deploy New Linux Espionage Toolkit appeared first on SecurityWeek.

DPRK APTs: Ted backdoor and curlRAT target South Korean media and automotive sectors

OverviewA new Linux toolkit, identified by Rapid7 Labs, has been targeting organizations across South Korea’s automotive and media industries with minimal detection. The campaign made use of a HAProxy instance named “ted backdoor”, alongside trojanized versions of crond, agetty, atd, sshd, and polkitd. This previously undocumented framework enabled threat actors to execute remote commands on compromised servers, inject malicious scripts into web traffic, perform credential harvesting, and engag…

Chinese Hackers Use AI Agents in Multi-Country Cyber Campaign

Hunt.io uncovered a Chinese-speaking campaign using AI agents to automate cyberattacks against Asian government, education and industrial targets. Threat intelligence firm Hunt.io just documented a second, separate China-linked campaign wiring commercial AI models directly into live cyberespionage operations, this time hitting Taiwan’s Kuomintang Party archives, Indonesia’s Ministry of Foreign Affairs, government and education systems in […]

2,000 Leaked Documents Reveal How Russia Turns Engineering Students Into GRU Cyber Operators

2,000 leaked files expose Bauman University’s hidden Department No. 4, which trained GRU-linked hackers and propagandists linked to APT28 and Sandworm. Leaked Documents Expose Bauman University’s Hidden Department That Trained Hackers, Propagandists, and Malware Developers for the GRU More than 2,000 internal documents from Bauman Moscow State Technical University have been reviewed by an international […]

Iran-linked APT Mirage Kitten Uses Fake Job Tests to Spread Malware

Mirage Kitten used fake LinkedIn coding tests to spread NodeRabbit and PollCat, even banning AI tools that could have spotted the malware. Iran-linked Mirage Kitten hackers just found a genuinely clever way to make their own malware harder to detect: telling job candidates not to use AI tools while reviewing the trojanized code they were […]

China-linked Fire Ant Hides Inside Trusted Infrastructure

Fire Ant hijacked Cisco routers, stole credentials and altered logs to hide its tracks, using trusted infrastructure to reach high-value networks. Chinese-linked cyber espionage group Fire Ant has spent the past year quietly graduating from hacking individual computers to hacking the infrastructure that connects them. Sygnia’s new report traces how the group expanded from compromising […]

China-Linked Fire Ant Hijacks Cisco Routers to Steal Credentials and Blind Security Logs

A China-nexus cyber espionage actor tracked as Fire Ant has expanded a long-running campaign beyond VMware hypervisors to compromise Cisco IOS XR routers, Terminal Access Controller Access-Control System (TACACS) servers, and Linux management hosts used to route, authenticate, and manage high-value networks. Sygnia, the incident response firm that investigated the intrusion, said the actor

Why a cryptographic inventory is key for addressing the quantum computing threat

When quantum computers become generally available, they’ll be able to crack current public-key cryptographic algorithms, putting digitally stored and transmitted data at risk. But the threat already exists, as attackers use the "harvest now, decrypt later" tactic. Discover why building a comprehensive cryptographic inventory and executing a phased operational strategy are critical for protecting your data against quantum computing attacks.Key takeawaysQuantum computing risks are an operational …

Russian APT BlueDelta Uses HOOKEDGE to Target Defense and Diplomatic Organizations

BlueDelta (APT28) uses webhook.site and Microsoft Edge to hide HOOKEDGE espionage traffic targeting European governments. Recorded Future’s Insikt Group documented a campaign by BlueDelta, the Russian GRU-linked group that overlaps with the group APT28, running an entire espionage operation against European government targets using webhook.site, a service built for developers to test HTTP requests, as […]

APT28-Linked HOOKEDGE Backdoor Targets European Government and Diplomatic Organizations

Cybersecurity researchers have flagged a fresh set of campaigns targeting government and diplomatic organizations in Romania, Spain, and Türkiye between late September 2025 and early April 2026. These campaigns, per Recorded Future Insikt Group, have led to the deployment of a previously undocumented backdoor dubbed HOOKEDGE, a lightweight Windows batch script that's distributed via

Dark Caracal Deploys New Go Malware With Ethereum-Based C2 Fallback

Dark Caracal targets Venezuela with GoCaracal, an upgraded Bandook toolkit and an Ethereum fallback for resilient C2 communications. Dark Caracal is back with new malware and the same hunting grounds. Arctic Wolf Labs researchers link a June 2026 intrusion against a communications organisation in Venezuela to the Lebanon‑linked espionage group, and says it deployed a […]

Identity-as-a-Service: Uncovering Dark Web Marketplaces Trading Executive SSNs

IntroductionDespite modern verification controls, identity theft remains one of the most pervasive threats to both individuals and enterprise organizations. U.S. Federal Trade Commission statistics show over 1 million identity theft reports annually, with related fraud and imposter scams accounting for billions in financial losses each year. While stolen credit cards enable rapid, short-term monetization, Social Security numbers (SSNs) represent a far more permanent and dangerous tier within th…

Russian Hackers Phish EU Officials Over Messaging Apps

EU governments are trying to move away from popular messaging apps as nation-state threat groups shift their focus from email to Signal and WhatsApp.

Dark Caracal Adds New Malware to Cyber Espionage Arsenal

GoCaracal is a new modular malware framework that broadens Dark Caracal's capabilities to steal data and maintain access to victims.

FBI Disrupts China-Linked QTFY Infrastructure Used to Steal Data From U.S. Organizations

The U.S. Department of Justice (DoJ) on Wednesday announced the disruption of two hacking platforms named QScan and QTRouter operated by Chinese threat actors to target critical infrastructure and other sensitive networks in the country. The activity has been attributed to a Chinese state-sponsored group known as QTFY, employed by Nanjing Xinjiuwei Network Technology Company (南京鑫玖维网络科技有限公司).&

Nimbus Manticore Expands Toolset With TWOSTROKE-Like Backdoor and SSH Tunneler

Cybersecurity researchers have discovered additional infrastructure and previously undocumented malware associated with Nimbus Manticore, an Iranian state-sponsored hacking group affiliated with the Islamic Revolutionary Guard Corps (IRGC). Group-IB, in a new analysis published today, described the cyber espionage actor as among the most active Iranian APT groups in 2026. Nimbus Manticore (aka

FBI disrupts proxy network enabling Chinese espionage operations

The FBI has disrupted infrastructure associated with a technical "quartermaster" that provided reconnaissance, proxy management, and operational routing capabilities for Chinese cyber espionage activities. [...]

Tortoiseshell: New Toolset and Operational Infrastructure Exposed

Group-IB Threat Intelligence performed enrichment and APT hunting based on recent public data about the Tortoiseshell APT group, leading to the discovery of new samples sharing similarities with known Tortoiseshell malware and additional operational infrastructure.